Colgate, who previously qualified for the 2011 U.S. Junior Amateur and the 2012 U.S. Amateur Championships, had the day’s only bogey-free round. He had three birdies on the front nine and two on the back

“I wasn’t happy with how I performed in the last couple of USGA events,” Colgate told Michael Trostel of the USGA. “But I’m really proud of the way I played today. I don’t have to worry if I make a couple of early bogeys tomorrow; I will know I am still in good shape.”

The tournament, held at Sand Creek Station, features 156 players and two days of stroke play. The top 64 players after Tuesday advance to single-elimination match play, held Wednesday through Saturday.